PCI-SIG Announces Development of PCI Express 7.0

SANTA CLARA, Calif., June 21, 2022 — PCI-GIS announced that his PCI express (PCIe) 7.0 will double the data rate to 128 GT/s and is expected to be available to members in 2025.

The PCI-SIG Technical Working Groups will develop the PCIe 7.0 specification with the following functionality goals:

  • Delivers 128 GT/s raw bit rate and up to 512 GB/s bi-directionally via x16 configuration
  • Using PAM4 signaling (4-level pulse amplitude modulation)
  • Focus on channel parameters and scope
  • Continue to achieve low latency and high reliability goals
  • Improved energy efficiency
  • Maintained backwards compatibility with all previous generations of PCIe technology

“For 30 years, the guiding principle of PCI-SIG has been, ‘If we build it, they will come,'” observed Insight 64 researcher Nathan Brookwood. “Early parallel versions of PCI technology supported speeds of hundreds of megabytes/second, well suited for the graphics, storage, and networking demands of the 1990s. In 2003, PCI-SIG evolved to a serial design supporting gigabytes/second speeds to accommodate semi- faster drivers and 100MbE Ethernet.Almost like clockwork, PCI-SIG has doubled the bandwidth of PCIe specifications every three years to meet the challenges of emerging applications and markets.Today’s announcement of the plan of PCI-SIG aiming to double the channel speed to 512 Gb/s (bidirectional) puts it on track to double the performance of the PCIe specification for another 3-year cycle.

“With the upcoming PCIe 7.0 specification, PCI-SIG continues its 30-year commitment to delivering industry-leading specifications that push the boundaries of innovation,” said Al Yanes, president and president of PCI-SIG. “As PCIe technology continues to evolve to meet high bandwidth demands, our working groups will focus on channel settings and range and improving power efficiency.”

The PCIe 7.0 specification aims to support emerging applications such as 800G Ethernet, AI/ML, Cloud, and Quantum Computing; and data-intensive markets like hyperscale data centers, high performance computing (HPC), and military/aerospace.

About PCI-GIS

PCI-SIG is the consortium that owns and manages the PCI specifications as open industry standards. The organization defines industry standard I/O (input/output) specifications based on the needs of its members. Currently, PCI-SIG is made up of more than 900 industry-leading member companies. To join PCI-SIG, and for a list of the board, visit www.pcisig.com.


Source: PCI-GIS